INSTRUCTION MANUAL MM-316G

210386

Water FeederClosing Level

LowWater Cut-Off

Burner Starts

21/4" (57mm)

37/16" (87mm)

23/4" (70mm)

Feeder keeps waterlevel 37/16" (87mm)above center of lowergauge glass tapping

If extreme priming orfoaming causes waterline to fall 13/16" (30mm)below feeder closing level, cut-off switch stops the burner

When water level isrestored 1/2" (13mm)above emergency.Cut-off switch starts burner and the waterfeeder resumescontrol

Motor Switch Rating (Amperes)Voltage Full Load Locked Rotor Pilot Duty120 VAC 10.2 61.2 125 VA at 120240 VAC 5.1 30.6 or 240 VAC, 60 Hz

OPERATION

Series 47/47-2 Operating Levels

All Models• Maximum Water Pressure: 150 psi (10.5 kg/cm2)• Maximum Water Temp: 120˚F (49˚C)• Water Connection Size: 1/2” NPT

47/47-2• Maximum Boiler Pressure: 25 psi (1.76 kg/cm2)

247/247-2• Maximum Boiler Pressure: 30 psi (2.1 kg/cm2)

Electrical Ratings

Series 47 Water Feeders and Series 47-2Combination Water Feeder/Low Water Cut-Offmaintain minimum water level in the boiler duringnormal operation.

Series 47-2 Combination Water Feeder/LowWater Cut-Off allows the burner to operate ondemand as the water level is restored to itsproper level.

Series 47-2 Combination Water Feeder/LowWater Cut-Off shuts off the burner if the boilerwater level drops 1 3/16” (30mm) below the waterfeeder’s closing level.

2

CAUTION:A more frequent replacement interval may be necessary based on the condition ofthe unit at time of inspection. McDonnell Miller s warranty is one (1) year from dateof installation or two (2) years from the date of manufacture.

Failure to follow this warning could cause property damage, personal inj ury or death.

& '

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117/8

"

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PARALLEL TO BOILER

OUT IN

117/8

"

105/8"

OUT

IN

������������

(alternate water equalizing tapping used)

OUT

IN

105/8"

135/8"

9"

9"

135/8"������

(alternate water equalizing tapping used)

IN OUT

105/8"

RIGHT ANGLED TO BOILER

RIGHT ANGLED TO BOILERWITH TURNED Y FITTINGS

PARALLEL TO BOILERWITH TURNED Y FITTINGS

3

STEP 1 - Determine Best Position to Install the Water Feeder(to clear obstructions that may be encountered on the side of the boiler).

INSTALLATION –TOOLS NEEDED:Two (2) pipe wrenches, and one (1) flathead screwdriver.

Series 247 and 247-2 Operating Level

Valve Off -7/16" (11.1mm)Casting Line - 0"Burner On - 1/4" (6.4mm)Burner Off - 3/4" (19mm)

Water feeder figures are +/- 1/4" (6.4mm)Burner figures are +/- 1/8" (3.2mm)

TOP VIEWS

EF

D

10-5/8"(270mm)

G

d. Determine the position of the black "Y" casting (F).

If gauge glass tappings (D) and (E) are less than 10 5⁄8" (270 mm) apart, install the black "Y" casting (F) as depicted in the diagram to the top right.

OR

If gauge glass tappings (D) and (E) are greater than 10 5⁄8" (270 mm) apart, invertthe black "Y" casting (F) as depicted in the diagram to the bottom right.

OR

If gauge glass tappings (D) and (E) are greater than 14" (356 mm) apart, invert theblack "Y" casting (F) as depicted in the diagram to the bottom right and install a longer nipple (G).

F

INVERTED “Y” CASTING

Note:Reverse unionnuts, packingand plug.Tighten topnut securely.

G

4

STEP 2 - Preparation (Installing Quick Hook-up Fittings to Water Feeder)

a. Turn the boiler off.

A

b. Drain the water in the boiler until the level falls below the lower gauge glass connection (A). Allow the boiler to cool to 80˚F (27 ˚C) and allow the pressure to release to 0 psi (0 bar).

B

Cc. Remove the water glass (B) and gauge glass connections (C)

from the boiler.

OFF

ON

FG

g. Slide the black "Y" (F) casting over the nipple (G) in accordance with Step 2d, but do not tighten.

LF

MN L

P

U

U K

Q

Q

h. 1). Apply sealant to the external threads of the nipple (L)of the upper "Y" connection. Using a pipe wrench, tighten the nipple (L) into the 1/2" (15 mm) NPT tapping (M) of the black "Y" casting (F). Slide union nut (U) over nipple (L). Using a pipe wrench tightenthe upper “Y” connection (N) to nipple (L). Tighten to 54 ft•lb (74 N•m).

2). Apply sealant to the external threads of the tailpiece (P)of the lower "Y" connection. Slide union nut (U) over tailpiece (P). Using a pipe wrench, tighten the tailpiece (P) into the 1/2” (15 mm) NPT tapping (Q) in the lower half of body (K). Tighten to 54 ft•lb (74 N•m).

5

JH

K

e. Remove the plug (H) from the 1/2" (15 mm) NPTtapping (J) in the top of the feeder body (K).

J

G

K

No Threadsf. Apply thread sealant to the external threads. Using a pipe wrench, tighten the 1/2" (15 mm) NPT nipple (G) into the tapping (J) on the top of the feeder (K) to approximately 54 ft•lb (74 N•m).

Note: Nipple (G) is only threaded on one end.

Upper “Y”

Lower “Y”

When using pipe or tape sealant on the external threads of pipes or fittings, follow the manufacturers instructions. Use sparingly and do not place on the first thread.

! IMPORTANT

6

STEP 3 - Installing Series 47 Water Feeder or Series 47-2 Combination Water Feeder/Low Water Cut-Off with Quick Hook-Up Fittings to Boiler

a. Apply thread sealant to the external threads of the "Y" fittings (T). Using the pipe wrench, install them in the boiler gauge glass tappings (S),and tighten to approximately 54 ft•lb (74 N•m).

Tighten both union nuts (U).

b. Reinstall water glass and gauge connections to “Y”fittings (T).

When using pipe or tape sealant on the external threads of pipes or fittings, follow the manufacturers instructions. Use sparingly and do not place on the first thread.

! IMPORTANT

U

N

L

U

U

TS

R

i. Using the pipe wrench, tighten the furnished pipe plug into the open tapping (R) on the lower half of the feeder float body in accordance with the position diagrams in Step 1. Tighten the plug to approximately 20 ft•lb (27.3 N•m).

STEP 4 - Installing Series 247/247-2 Water Feeder to Boiler

BurnerBoiler

City Water Supply

ReturnHeader

Series 247Water Feeder

CastingLine

ByPassValve

Pipe the Series 247/247-2 water feeder so thatthe line on the casting is 3" (76mm) above theminimum safe operating level as specified bythe boiler manufacturer.

Recommended Piping

STEP 5 - Piping the valve on the Models 47/47-2 and 247/247-2

TO BOILER

By-PassValve

Swing Check

STEP 6 - Electrical Wiring (Only for Series 47-2 & 247-2)

AA

a. Using the flathead screwdriver, loosen the two (2) screws that secure the switch cover (AA).

Remove cover.

7

! IMPORTANTBoiler manufacturer schematics should always be followed. In the event that the boiler manufacturer's schematicdoes not exist, or is not available from the boiler manufacturer, refer to the schematics provided in this document.

a. Follow the drawing to the right for piping the valve to the boiler and city water supply. When piping the valve, remember to leave room for servicing the valve.

b. Piping the valve this way will aid in troubleshooting the valve and piping in the future.

8

STEP 7 - Testing and Inspection

V

CLOSING LEVEL

INSTALLATION COMPLETE

C.

Line

Load

N.

N.C.

O.

C.

Loador

BurnerCircuit

LowWaterAlarm

N.

N.C.

Neutral

120 V.A.C.or 24 V.A.C.

Supply

HOT O.

b. Based on the mode of operation required for your application, complete the appropriate corresponding step.

When the water feeder is used as a low water cut-off switch and/or a low water alarm, connect the "Hot" wire to the "Common" contact. Using a flat head screw driver, tighten the screw. Connectthe low water alarm to the “Normally Open” contact and tighten the screw. Connect the burner or load circuit wire to the “Normally Closed” contact and tighten the screw.

OR

When the water feeder is used as a pilot switch to a holding coil of a motor starter or relay, connect as shown in the diagram to the right.

Low water cut-off switch and/or low water alarm

Pilot switch for motor starter or relay

The feeder should be blown down after initial installationbefore leaving site. It should also be blown down as recommended in the Maintenance section of theseinstructions.

• Burner should be on and water level above 'closing level' of feeder.

• Slowly open the water feeder blow down valve 'V' which will lower the water level in the float chamber.As water flows out the blow down pipe, you should begin to hear the feeder valve open.

• If the feeder has a #2 switch, the burner should stop.

• Close the water feeder blow down valve 'V'. The water level should return to a safe operating level and the burner should turn on.

To prevent serious personal injury from steam pipeblow down, connect a drain pipe to the controlopening to avoid exposure to steam discharge.

Failure to follow this caution could cause personalinjury.

! CAUTION

Blow Down of Feeder

9

X

Z

TO BOILER

FeedValve By-Pass

Valve

Check Valve

WATERSUPPLY

Make sure that the water level in the boiler is above theclosing level of the feeder.

Close valve 'X' and slowly open union 'Z' to determine ifvalve is leaking.

• If water is leaking from the union, the valve needs to be serviced.

• If no water leaks from the union, the feeder operation is not the cause of the flooding.

Broken Union Test

E

D

B

H

x 4

A. Using a 1/2" socket wrench, unscrew the four (4) hex-head bolts (B) that secure the strainer basket (H) to the valve assembly (E).

B. Using a 13/16" socket wrench, unscrew the cartridge (D) and remove.

C. Clean any debris (scale, rust, etc.) from strainer and cartridge.Poppet inside cartridge must move freely. Replace if debris cannot be removed or poppet does not move freely.

D. Lubricate cartridge o-rings using silicone type lubricant and re-install.

E. Re-install strainer basket.

Removal of cartridge and strainer for inspection and cleaning

10

TROUBLESHOOTINGThe following is intended as a guide to determine why the feeder may not be operating as intended. Please note thatthere can be system and installation issues that can affect the operation of the feeder. This includes but is not limited tothe following:• Piping not installed properly • Priming and foaming of boiler water• Faulty check valve in return header • Delay in condensate returning to boiler• Tankless coil leaking

Boiler is getting too much water.a) Cause: There is something preventing the valve

(cartridge poppet) from completely closing.

Test: Perform broken union test.

Solution: Remove and inspect cartridge. Clean or replace as necessary.

b) Cause: By-pass valve is leaking.

Test: Perform broken union test.

Solution: Repair or replace valve.

c) Cause: Float chamber clogged with sediment.

Test: Open blow-down valve. If there is little or no water flow, the chamber may be clogged with sediment.

Solution: Remove bottom of float chamber. Clean sediment from chamber, float and bellows mechanism.Replace control if necessary.

d) Cause: Float has filled with water.

Solution: Replace float.

e) Cause: Equalizing piping is plugged.

Solution: Clean or replace piping.

f) Cause: Water supply is above 150 psi.

Solution: Install pressure reducing valve to reduce water pressure.

Boiler is not getting enough water.a) Cause: There is something preventing the valve

(cartridge poppet) from fully opening.

Test: Perform broken union test.

Solution: Remove and inspect cartridge. Clean or replace as necessary.

b) Cause: Strainer clogged with sediment.

Test: Perform broken union test.

Solution: Remove and inspect strainer. Clean or replace as necessary.

c) Cause: Float chamber clogged with sediment.

Test: Open blow-down valve. If there is little or no water flow, the chamber may be clogged with sediment.

Solution: Remove bottom of float chamber and clean sediment from chamber, float and bellows mechanism.Replace control if necessary.

d) Cause: Feed line between valve and boiler is partially plugged.

Test: Perform broken union test. With union broken, there should be water flowing through the piping from the boiler.

Solution: Clean or replace piping.

e) Cause: Feed line between valve and city water supply is plugged.

Solution: Clean or replace piping.

f) Cause: Water supply pressure is less than boiler pressure.

Solution: Reduce boiler pressure or convert to pumped return.

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MAINTENANCE

SCHEDULE:Weekly• Blow down when boiler is in operation.Annually• Disassemble and inspect/clean strainer screen.

Replace if screen is torn or not able to be cleaned.• Remove and inspect/clean cartridge. Replace if

poppet does not move freely or debris cannot be removed.

• Remove lower float chamber and inspect internal parts. Clean out all mud, silt, sediment and debris from chamber, float mechanism and other waterside components.

• Inspect equalizing piping. Clean or replace as required.

• Check all wires for brittle or worn insulation.• Check for leaks at gasket surfaces and solder joints.

Replace entire unit including equalizing piping every10 years.More frequent cleaning or replacement may berequired if used in locations where water treatment isrequired or in applications with high make-up waterrequirements.

NOTEUse clean water to rinse components and surfaces. DONOT use sharp objects to scrape off any accumulations

of sediment or debris.

Unit is making noise.a) Cause: Under certain system conditions, there may be

a vibration when the valve mechanism (cartridge poppet)is slightly open.Solution: Install a pressure reducing valve, such as the Bell & Gossett B-38, in the inlet water line before the feeder valve.

Burner switch not working.a) Cause: Cam worn or broken.

Solution: Replace cam assembly (CO-106/302900).b) Cause: Linkages not transferring float movement

to switch.Solution:• Linkage pins may be worn or broken which would

require purchasing a new valve assembly(SA47-101-102/341600).

• Float may be damaged, sediment may have accumulated in chamber or equalizing piping may be plugged. Perform testing to determine what the problem may be and correct.

Water leaking from bellowsa) Cause: Continuous exposure to chemicals or water with

pH higher than 9.0 can cause the solder to deteriorate.Solution: Remove source of chemicals or consider replacing control with one that is suitable for the application.

TROUBLESHOOTING (cont'd)

Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379www.mcdonnellmiller.com

McDonnell & Miller is a trademark of Xylem Inc. or one of its subsidiaries. © 2015 Xylem Inc. MM-316G September 2015 Part No. 210386

COMMERCIAL WARRANTYWarranty. For goods sold to commercial buyers, Seller warrants the goods sold to Buyer hereunder (with the exception of membranes, seals, gaskets, elastomer materials, coatings and other “wear parts” or consumables all of which are not warranted except as otherwise provided in the quotation or sales form) will be (i) be built in accordance with the specifications referred to in the quotation or sales form, if such specifications are expressly made a part of this Agreement, and (ii) free from defects in material and workmanship for a period of one (1) year from the date of installation or two (2) years from the date of manufacture, whichever shall occur first, unless a longer period is specified in the product documentation (the “Warranty”).

Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any product which fails to conform with the Warranty provided Buyer gives written notice to Seller of any defects in material or workmanship within ten (10) days of the date when any defects or non-conformance are first manifest. Under either repair or replacement option, Seller shall not be obligated to remove or pay for the removal of the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be responsible for all other costs, including, but not limited to, service costs, shipping fees and expenses. Seller shall have sole discretion as to the method or means of repair or replacement. Buyer’s failure to comply with Seller’s repair or replacement directions shall terminate Seller’s obligations under this Warranty and render the Warranty void. Any parts repaired or replaced under the Warranty are warranted only for the balance of the warranty period on the parts that were repaired or replaced. Seller shall have no warranty obligations to Buyer with respect to any product or parts of a product that have been: (a) repaired by third parties other than Seller or without Seller’s written approval; (b) subject to misuse, misapplication, neglect, alteration, accident, or physical damage; (c) used in a manner contrary to Seller’s instructions for installation, operation and maintenance; (d) damaged from ordinary wear and tear, corrosion, or chemical attack; (e) damaged due to abnormal conditions, vibration, failure to properly prime, or operation without flow; (f) damaged due to a defective power supply or improper electrical protection; or (g) damaged resulting from the use of accessory equipment not sold or approved by Seller. In any case of products not manufactured by Seller, there is no warranty from Seller; however, Seller will extend to Buyer any warranty received from Seller’s supplier of such products.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER EXPRESS OR IMPLIED WARRANTIES, GUARANTEES, CONDITIONS OR TERMS OF WHATEVER NATURE RELATING TO THE GOODS PROVIDED HEREUNDER, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY EXPRESSLY DISCLAIMED AND EXCLUDED. EXCEPT AS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY AND SELLER’S AGGREGATE LIABILITY FOR BREACH OF ANY OF THE FOREGOING WARRANTIES ARE LIMITED TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED TO THE AMOUNT PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY OTHER FORM OF DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS OF ANTICIPATED SAVINGS OR REVENUE, LOSS OF INCOME, LOSS OF BUSINESS, LOSS OF PRODUCTION, LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.

LIMITED CONSUMER WARRANTYWarranty. For goods sold for personal, family or household purposes, Seller warrants the goods purchased hereunder (with the exception of membranes, seals, gaskets, elastomer materials, coatings and other “wear parts” or consumables all of which are not warranted except as otherwise provided in the quotation or sales form) will be free from defects in material and workmanship for a period of one (1) year from the date of installation or two (2) years from the product date code, whichever shall occur first, unless a longer period is provided by law or is specified in the product documentation (the “Warranty”).

Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any product which fails to conform with the Warranty provided Buyer gives written notice to Seller of any defects in material or workmanship within ten (10) days of the date when any defects or non-conformance are first manifest. Under either repair or replacement option, Seller shall not be obligated to remove or pay for the removal of the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be responsible for all other costs, including, but not limited to, service costs, shipping fees and expenses. Seller shall have sole discretion as to the method or means of repair or replacement. Buyer’s failure to comply with Seller’s repair or replacement directions shall terminate Seller’s obligations under this Warranty and render this Warranty void. Any parts repaired or replaced under the Warranty are warranted only for the balance of the warranty period on the parts that were repaired or replaced. The Warranty is conditioned on Buyer giving written notice to Seller of any defects in material or workmanship of warranted goods within ten (10) days of the date when any defects are first manifest.

Seller shall have no warranty obligations to Buyer with respect to any product or parts of a product that have been: (a) repaired by third parties other than Seller or without Seller’s written approval; (b) subject to misuse, misapplication, neglect, alteration, accident, or physical damage; (c) used in a manner contrary to Seller’s instructions for installation, operation and maintenance; (d) damaged from ordinary wear and tear, corrosion, or chemical attack; (e) damaged due to abnormal conditions, vibration, failure to properly prime, or operation without flow; (f) damaged due to a defective power supply or improper electrical protection; or (g) damaged resulting from the use of accessory equipment not sold or approved by Seller. In any case of products not manufactured by Seller, there is no warranty from Seller; however, Seller will extend to Buyer any warranty received from Seller’s supplier of such products.

THE FOREGOING WARRANTY IS PROVIDED IN PLACE OF ALL OTHER EXPRESS WARRANTIES. ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE (1) YEAR FROM THE DATE OF INSTALLATION OR TWO (2) YEARS FROM THE PRODUCT DATE CODE, WHICHEVER SHALL OCCUR FIRST. EXCEPT AS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY AND SELLER’S AGGREGATE LIABILITY FOR BREACH OF ANY OF THE FOREGOING WARRANTIES ARE LIMITED TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED TO THE AMOUNT PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY OTHER FORM OF DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS OF ANTICIPATED SAVINGS OR REVENUE, LOSS OF INCOME, LOSS OF BUSINESS, LOSS OF PRODUCTION, LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.

To make a warranty claim, check first with the dealer from whom you purchased the product or call +1-847-966-3700 for the name and location of the nearest dealer providing warranty service.